Este protocolo aborda pacientes assintomáticos com prolapso da válvula mitral causando regurgitação mitral primária grave classificada como Estágio C1, na qual a função sistólica ventricular esquerda permanece preservada.
Cenário clínico: Regurgitação mitral primária grave (Estágio C1), paciente assintomático, com fração de ejeção ventricular esquerda normal (maior que 60%) e dimensão sistólica final ventricular esquerda abaixo de 40 mm.
DOI: 10.1161/CIR.0000000000000923
In asymptomatic patients with severe primary MR and normal LV systolic function (LVEF ≥60% and LVESD ≤40 mm) (Stage C1), mitral valve repair is reasonable when the likelihood of a successful and durable repair without residual MR is >95% with an expected mortality rate of <1%, when it can be performed at a Primary or Comprehensive Valve Center.
In asymptomatic patients with severe primary MR and normal LV systolic function (LVEF >60% and LVESD <40 mm) (Stage C1) but with a progressive increase in LV size or decrease in EF on ≥3 serial imaging studies, mitral valve surgery may be considered irrespective of the probability of a successful and durable repair.